Amphiphilic Block Copolymers: Their Structures, and Self-Assembly to Polymeric Micelles and Polymersomes as Drug Delivery Vehicles

Polymers, Год журнала: 2022, Номер 14(21), С. 4702 - 4702

Опубликована: Ноя. 3, 2022

Self-assembly of amphiphilic block copolymers display a multiplicity nanoscale periodic patterns proposed as dominant tool for the 'bottom-up' fabrication nanomaterials with different levels ordering. The present review article focuses on recent updates to self-association in aqueous media into varied core-shell morphologies. We briefly describe copolymers, their types, microdomain formation bulk and micellization selective solvents. also discuss characteristic features nanoaggregates viz., polymer micelles (PMs) polymersomes. Amphiphilic (with variety hydrophobic blocks hydrophilic blocks; often polyethylene oxide) self-assemble water micelles/niosomes similar conventional nonionic surfactants high drug loading capacity. Double (DHBCs) made neutral block-neutral or block-charged can transform one become under influence stimulus (physical/chemical/biological), thus induced amphiphilicity self-assembly are discussed. Different kinds (viz. shell core-cross-linked, core-shell-corona, schizophrenic, crew cut, Janus) presented detail. Updates polymerization-induced (PISA) crystallization-driven (CDSA) provided. Polyion complexes (PICs) polyion complex (PICMs) Applications these copolymeric polymersomes nanocarriers delivery systems described.

Язык: Английский

---

Porous organic polymers (POPs) for environmental remediation

Materials Horizons, Год журнала: 2023, Номер 10(10), С. 4083 - 4138

Опубликована: Янв. 1, 2023

Porous organic polymers show great potential for addressing environmental pollution challenges, including chemical sensing, wastewater treatment, toxic gas sorption, heterogeneous catalysis, and further promoting sustainable remediation strategies.

Язык: Английский

---

Progress of Electrospun Nanofibrous Carriers for Modifications to Drug Release Profiles

Journal of Functional Biomaterials, Год журнала: 2022, Номер 13(4), С. 289 - 289

Опубликована: Дек. 9, 2022

Electrospinning is an advanced technology for the preparation of drug-carrying nanofibers that has demonstrated great advantages in biomedical field. Electrospun nanofiber membranes are widely used field drug administration due to their such as large specific surface area and similarity extracellular matrix. Different electrospinning technologies can be prepare different structures, those with a monolithic structure, core–shell Janus or porous structure. It also possible controlled-release functions, sustained release, delayed biphasic targeted release. This paper elaborates on drug-loaded using various concludes mechanisms behind controlled release drugs.

Язык: Английский

---

Silk Sericin: A Promising Sustainable Biomaterial for Biomedical and Pharmaceutical Applications

Polymers, Год журнала: 2022, Номер 14(22), С. 4931 - 4931

Опубликована: Ноя. 15, 2022

Silk is a natural composite fiber composed mainly of hydrophobic fibroin and hydrophilic sericin, produced by the silkworm Bombyx mori. In textile industry, cocoons B. mori are processed into silk fabric, where sericin substantially removed usually discarded in wastewater. This wastewater pollutes environment water sources. However, has been recognized as potential biomaterial due to its biocompatibility, immunocompatibility, biodegradability, anti-inflammatory, antibacterial, antioxidant photoprotective properties. Moreover, can produce hydrogels, films, sponges, foams, dressings, particles, fibers, etc., for various biomedical pharmaceutical applications (e.g., tissue engineering, wound healing, drug delivery, cosmetics). Given severe environmental pollution caused disposal beneficial properties, there growing interest upcycling this biomaterial, which could have strong positive economic, social impact.

Язык: Английский

---

Recent advances in solar photovoltaic materials and systems for energy storage applications: a review

Beni-Suef University Journal of Basic and Applied Sciences, Год журнала: 2023, Номер 12(1)

Опубликована: Июль 17, 2023

Abstract Background In recent years, solar photovoltaic technology has experienced significant advances in both materials and systems, leading to improvements efficiency, cost, energy storage capacity. These have made a more viable option for renewable generation storage. However, intermittent is major limitation of energy, systems are the preferred solution these challenges where electric power applicable. Hence, type system depends on used electrical generation. Furthermore, growing need sources necessity long-term solutions fueled research into novel systems. Researchers concentrated increasing efficiency cells by creating that can collect convert sunlight power. Main body abstract This study provides an overview development devices. The use sources, such as power, becoming increasingly important address demand mitigate impact climate change. with superior properties, higher lower improved durability, significantly enhance performance panels enable creation new, efficient review discusses progress field opportunities associated also explored, including scalability, stability, economic feasibility. Conclusion devices holds great potential revolutionize energy. With ongoing technological advancements, scientists engineers been able design properties durability. be existing adoption could implications transition toward sustainable environmentally friendly system. there still addressed, environmental effects, feasibility, before widely implemented. Nonetheless, this promising continued reports crucial achieving future. lead system, but further needed overcome current limitations large-scale implementation.

Язык: Английский

---

Processes of Electrospun Polyvinylidene Fluoride-Based Nanofibers, Their Piezoelectric Properties, and Several Fantastic Applications

Polymers, Год журнала: 2022, Номер 14(20), С. 4311 - 4311

Опубликована: Окт. 13, 2022

Since the third scientific and technological revolution, electronic information technology has developed rapidly, piezoelectric materials that can convert mechanical energy into electrical have become a research hotspot. Among them, polymers are widely used in various fields such as water treatment, biomedicine, flexible sensors due to their good flexibility weak toxicity. However, compared with ceramic materials, properties of poor, so it is very important improve polymers. Electrospinning by adjusting electrospinning parameters control piezoelectrically active phase transition In addition, prepared nanofibrous membrane also substrate for supporting functional particles, which effectively doping particles. This paper reviews electrospun polymer membranes, especially polyvinylidene fluoride (PVDF)-based membranes (NFs). Additionally, this introduces methods increasing from perspective structure species. Finally, applications NFs biology, energy, photocatalysis discussed, future directions development prospected.

Язык: Английский

---

Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Advanced Engineering Materials, Год журнала: 2023, Номер 25(21)

Опубликована: Авг. 29, 2023

Stimuli‐responsive polymers (SRPs) are special types of soft materials, which have been extensively used for developing flexible actuators, robots, wearable devices, sensors, self‐expanding structures, and biomedical thanks to their ability change shapes functional properties in response external stimuli including light, humidity, heat, pH, electric field, solvent, magnetic field or combinations two more these stimuli. In recent years, additive manufacturing (AM) aka 3D printing technology SRPs, also known as 4D printing, has gained phenomenal attention different engineering fields, its unique develop complex, personalized, innovative undergo twisting, elongating, swelling, rolling, shrinking, bending, spiraling, other complex morphological transformations. Herein, an effort made provide insightful information about the AM techniques, type applications including, but not limited tissue engineering, bionics, construction, smart textiles. This article incorporates current challenges prospects, hoping basis utilization this fields. It is expected that amalgamation with SRPs would unparalleled advantages arenas.

Язык: Английский

---

Recent Progress in Electrospun Polyacrylonitrile Nanofiber-Based Wound Dressing

Polymers, Год журнала: 2022, Номер 14(16), С. 3266 - 3266

Опубликована: Авг. 11, 2022

Bleeding control plays a very important role in worldwide healthcare, which also promotes research and development of wound dressings. The healing process involves four stages hemostasis, inflammation, proliferation remodeling, is complex process, dressings play huge it. Electrospinning technology simple to operate. Electrospun nanofibers have high specific surface area, porosity, oxygen permeability, excellent mechanical properties, show great utilization value the manufacture As one most popular reactive functional synthetic polymers, polyacrylonitrile (PAN) frequently explored create for wide variety applications. In recent years, researchers invested application PAN Research on spun reviewed, future directions prospects electrospun are proposed.

Язык: Английский

---

Porous organic polymers with defined morphologies: Synthesis, assembly, and emerging applications

Progress in Polymer Science, Год журнала: 2023, Номер 142, С. 101691 - 101691

Опубликована: Май 6, 2023

Язык: Английский

---

Electrospun Porous Nanofibers: Pore−Forming Mechanisms and Applications for Photocatalytic Degradation of Organic Pollutants in Wastewater

Polymers, Год журнала: 2022, Номер 14(19), С. 3990 - 3990

Опубликована: Сен. 23, 2022

Electrospun porous nanofibers have large specific surface areas and abundant active centers, which can effectively improve the properties of nanofibers. In field photocatalysis, electrospun increase contact area loaded photocatalytic particles with light, shorten electron transfer path, activity. this paper, main pore−forming mechanisms nanofiber are summarized as breath figures, phase separation (vapor−induced separation, non−solvent−induced thermally induced separation) post−processing (selective removal). Then, application loading in degradation pollutants (such organic, inorganic, bacteria) water is introduced, its future development prospected. Although structures beneficial improving performance nanofibers, they reduce their mechanical properties. Therefore, strategies for also briefly discussed.

Язык: Английский

---